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Light-Metal Foams—History of Innovation and Technological Challenges


  • John Banhart

    Corresponding author
    1. Helmholtz Centre Berlin, Hahn-Meitner-Platz, 14109 Berlin, Germany
    2. Berlin Institute of Technology, Institute of Materials Science and Technology, Hardenbergstr. 36, 10623 Berlin, Germany
    • Helmholtz Centre Berlin, Hahn-Meitner-Platz, 14109 Berlin, Germany
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  • I would like to thank Alan Sabroff, Mike Maloney, Currie Berry and Hans-Peter Degischer for giving information on the historic background of some of the developments in metal foaming technology.


The history of metallic foams and the key innovations that have led to the variety of processing methods known today are reviewed. It is evident that the idea of foaming metals is very old and that most of the techniques used today have been proposed already in the 1950s. The most important milestones in the development of foaming technologies and the some of the attempts to commercialize metal foams are reviewed.

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